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  <h1 id="Linux下MySQL-8-0安装配置"><a href="#Linux下MySQL-8-0安装配置" class="headerlink" title="Linux下MySQL 8.0安装配置"></a>Linux下MySQL 8.0安装配置</h1><p><img src="http://iubest.gitee.io/pic/640-1601000667243.webp" alt="img"></p>
<h3 id="1、编译安装MySQL8-0"><a href="#1、编译安装MySQL8-0" class="headerlink" title="1、编译安装MySQL8.0"></a>1、编译安装MySQL8.0</h3><p>版本信息</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">#cat &#x2F;etc&#x2F;redhat-release</span><br><span class="line">CentOS Linux release 7.5.1804 (Core)</span><br></pre></td></tr></table></figure>

<p>安装依赖包</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">yum -y install wget cmake gcc gcc-c++ ncurses ncurses-devel libaio-devel openssl openssl-devel</span><br><span class="line">rpm -qa |grep libaio</span><br><span class="line">yum install libaio libaio-devel</span><br></pre></td></tr></table></figure>

<p>下载源码包</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">wget https:&#x2F;&#x2F;dev.mysql.com&#x2F;get&#x2F;Downloads&#x2F;MySQL-8.0&#x2F;mysql-boost-8.0.12.tar.gz</span><br></pre></td></tr></table></figure>

<p>创建用户和建立数据目录并赋予用户目录权限</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">groupadd mysql</span><br><span class="line">useradd -r -g mysql -s &#x2F;sbin&#x2F;nologin mysql</span><br><span class="line">mkdir -p &#x2F;usr&#x2F;local&#x2F;mysql</span><br><span class="line">mkdir -p &#x2F;data&#x2F;mysql</span><br><span class="line">chown -R mysql.mysql &#x2F;usr&#x2F;local&#x2F;mysql</span><br><span class="line">chown -R mysql.mysql &#x2F;data&#x2F;mysql</span><br><span class="line">chmod -R 755 &#x2F;usr&#x2F;local&#x2F;mysql&#x2F;</span><br><span class="line">chmod -R 755 &#x2F;data&#x2F;mysql&#x2F;</span><br></pre></td></tr></table></figure>

<p>解压并开始安装</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">tar -zxf mysql-boost-8.0.12.tar.gz</span><br></pre></td></tr></table></figure>

<p>配置</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br></pre></td><td class="code"><pre><span class="line">cd mysql-8.0.12</span><br><span class="line">cmake . -DCMAKE_INSTALL_PREFIX&#x3D;&#x2F;usr&#x2F;local&#x2F;mysql \</span><br><span class="line">-DMYSQL_DATADIR&#x3D;&#x2F;data&#x2F;mysql \</span><br><span class="line">-DSYSCONFDIR&#x3D;&#x2F;etc \</span><br><span class="line">-DMYSQL_TCP_PORT&#x3D;3306 \</span><br><span class="line">-DWITH_BOOST&#x3D;~&#x2F;mysql-8.0.12&#x2F;boost \</span><br><span class="line">-DDEFAULT_CHARSET&#x3D;utf8 \</span><br><span class="line">-DDEFAULT_COLLATION&#x3D;utf8_general_ci \</span><br><span class="line">-DENABLED_LOCAL_INFILE&#x3D;ON \</span><br><span class="line">-DWITH_INNODB_MEMCACHED&#x3D;ON \</span><br><span class="line">-DWITH_INNOBASE_STORAGE_ENGINE&#x3D;1 \</span><br><span class="line">-DWITH_FEDERATED_STORAGE_ENGINE&#x3D;1 \</span><br><span class="line">-DWITH_BLACKHOLE_STORAGE_ENGINE&#x3D;1 \</span><br><span class="line">-DWITH_ARCHIVE_STORAGE_ENGINE&#x3D;1 \</span><br><span class="line">-DWITHOUT_EXAMPLE_STORAGE_ENGINE&#x3D;1 \</span><br><span class="line">-DWITH_PERFSCHEMA_STORAGE_ENGINE&#x3D;1</span><br></pre></td></tr></table></figure>

<p>配置参数说明：</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br></pre></td><td class="code"><pre><span class="line">CMAKE_INSTALL_PREFIX ：指定基础安装目录</span><br><span class="line">MYSQL_DATADIR ：指定数据目录</span><br><span class="line">SYSCONFDIR&#x3D;&#x2F;etc ：指定配置文件扫描目录</span><br><span class="line">MYSQL_TCP_PORT ：指定端口号</span><br><span class="line">WITH_BOOST ：指定boost所在目录</span><br><span class="line">DEFAULT_CHARSET ：指定默认字符集</span><br><span class="line">DEFAULT_COLLATION ：指定默认排序规则</span><br><span class="line">ENABLED_LOCAL_INFILE&#x3D;ON ：是否为load data infile启用local</span><br><span class="line">WITH_INNODB_MEMCACHED&#x3D;ON :是否生成memcached共享库</span><br></pre></td></tr></table></figure>

<p>编译&amp;安装</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">make &amp;&amp; make install</span><br></pre></td></tr></table></figure>

<p>初始化数据库</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">mysqld --initialize-insecure --user&#x3D;mysql --basedir&#x3D;&#x2F;usr&#x2F;local&#x2F;mysql --datadir&#x3D;&#x2F;data&#x2F;mysql</span><br></pre></td></tr></table></figure>

<p>建立配置文件</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br></pre></td><td class="code"><pre><span class="line">cat &gt; &#x2F;etc&#x2F;my.cnf &lt;&lt;EOF</span><br><span class="line">[client]</span><br><span class="line">port&#x3D;3306</span><br><span class="line">socket&#x3D;&#x2F;tmp&#x2F;mysql.sock</span><br><span class="line">default-character-set&#x3D;utf8</span><br><span class="line">#user&#x3D;root</span><br><span class="line">#password&#x3D;123</span><br><span class="line">[mysqld]</span><br><span class="line">server-id&#x3D;1</span><br><span class="line">#skip-grant-tables</span><br><span class="line">port&#x3D;3306</span><br><span class="line">user&#x3D;mysql</span><br><span class="line">max_connections&#x3D;200</span><br><span class="line">socket&#x3D;&#x2F;tmp&#x2F;mysql.sock</span><br><span class="line">basedir&#x3D;&#x2F;usr&#x2F;local&#x2F;mysql</span><br><span class="line">datadir&#x3D;&#x2F;data&#x2F;mysql</span><br><span class="line">pid-file&#x3D;&#x2F;data&#x2F;mysql&#x2F;mysql.pid</span><br><span class="line">init-connect&#x3D;&#39;SET NAMES utf8&#39;</span><br><span class="line">character-set-server&#x3D;utf8</span><br><span class="line">default-storage-engine&#x3D;INNODB</span><br><span class="line">log_error&#x3D;&#x2F;data&#x2F;mysql&#x2F;mysql-error.log</span><br><span class="line">slow_query_log_file&#x3D;&#x2F;data&#x2F;mysql&#x2F;mysql-slow.log</span><br><span class="line">[mysqldump]</span><br><span class="line">quick</span><br><span class="line">max_allowed_packet&#x3D;16M</span><br><span class="line">EOF</span><br></pre></td></tr></table></figure>

<p>配置环境变量</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">echo &quot;PATH&#x3D;&#x2F;usr&#x2F;local&#x2F;mysql&#x2F;bin:$PATH&quot; &gt;&gt; &#x2F;etc&#x2F;profile</span><br><span class="line">source &#x2F;etc&#x2F;profile</span><br></pre></td></tr></table></figure>

<p>配置启动脚本</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br></pre></td><td class="code"><pre><span class="line">cp ..&#x2F;mysql-8.0.12&#x2F;support-files&#x2F;mysql.server &#x2F;etc&#x2F;init.d&#x2F;mysqld</span><br><span class="line">vim &#x2F;etc&#x2F;init.d&#x2F;mysqld</span><br><span class="line">chmod +x &#x2F;etc&#x2F;init.d&#x2F;mysqld</span><br><span class="line">&#x2F;etc&#x2F;init.d&#x2F;mysqld start</span><br></pre></td></tr></table></figure>

<p>centos7系统自启动脚本</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br></pre></td><td class="code"><pre><span class="line">cat &#x2F;usr&#x2F;lib&#x2F;systemd&#x2F;system&#x2F;mysqld.service</span><br><span class="line">[Unit]</span><br><span class="line">Description&#x3D;mysql server daemon</span><br><span class="line">Documentation&#x3D;man:mysql(8)</span><br><span class="line">Documentation&#x3D;http:&#x2F;&#x2F;dev.mysql.com&#x2F;doc&#x2F;refman&#x2F;en&#x2F;using-systemd.html</span><br><span class="line">After&#x3D;network.target</span><br><span class="line">After&#x3D;syslog.target</span><br><span class="line">[Install]</span><br><span class="line">WantedBy&#x3D;multi-user.target</span><br><span class="line">[Service]</span><br><span class="line">User&#x3D;mysql</span><br><span class="line">Group&#x3D;mysql</span><br><span class="line">Type&#x3D;notify</span><br><span class="line">TimeoutSec&#x3D;0</span><br><span class="line">PermissionsStartOnly&#x3D;true</span><br><span class="line">ExecStart&#x3D;&#x2F;usr&#x2F;local&#x2F;mysql&#x2F;bin&#x2F;mysqld $MYSQLD_OPTS</span><br><span class="line">LimitNOFILE &#x3D; 10000</span><br><span class="line">Restart&#x3D;always</span><br><span class="line">RestartPreventExitStatus&#x3D;1</span><br><span class="line">Environment&#x3D;MYSQLD_PARENT_PID&#x3D;1</span><br><span class="line">PrivateTmp&#x3D;false</span><br></pre></td></tr></table></figure>

<p>启动MySQL</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">systemctl start mysqld.service</span><br></pre></td></tr></table></figure>

<p>修改root密码：使用WITH指定认证方式</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">mysql -uroot</span><br><span class="line">ALTER USER &#39;root&#39;@&#39;localhost&#39; IDENTIFIED WITH mysql_native_password BY &#39;你的密码&#39;;</span><br><span class="line">ALTER USER &#39;root&#39;@&#39;localhost&#39; IDENTIFIED WITH caching_sha2_password BY &#39;你的密码&#39;;</span><br></pre></td></tr></table></figure>

<p>查看密码字段和加密方式</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre><span class="line">select host, user, authentication_string, plugin from user;</span><br></pre></td></tr></table></figure>

<h3 id="2、yum存储库安装MySQL"><a href="#2、yum存储库安装MySQL" class="headerlink" title="2、yum存储库安装MySQL"></a>2、yum存储库安装MySQL</h3><figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line">wget https:&#x2F;&#x2F;dev.mysql.com&#x2F;get&#x2F;mysql80-community-release-el7-1.noarch.rpm</span><br><span class="line">yum localinstall mysql80-community-release-el7-1.noarch.rpm</span><br><span class="line">yum repolist enabled|grep &quot;mysql.*-community.*&quot;</span><br><span class="line">yum repolist all|grep mysql</span><br><span class="line">yum install mysql-community-server</span><br><span class="line">systemctl enable mysqld</span><br><span class="line">systemctl start mysqld</span><br><span class="line">netstat -lntup|grep 3306</span><br></pre></td></tr></table></figure>

<p>查看随机生成的密码</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">grep &#39;temporary password&#39; &#x2F;var&#x2F;log&#x2F;mysqld.log</span><br><span class="line">mysql -uroot -p</span><br></pre></td></tr></table></figure>

<p>修改密码,密码必须要由大小写字母、数字和特性字符组成</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">alter user &#39;root&#39;@&#39;localhost&#39; identified by &#39;PJY@123.com&#39;;</span><br><span class="line">select version();</span><br></pre></td></tr></table></figure>

<p>更多细节参考官方文档…</p>
 
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